This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 89 |
| 3 | 1088 |
| 4 | 13617 |
| 5 | 157926 |
| 6 | 1763785 |
| 7 | 19470364 |
| 8 | 214326113 |
| 9 | 2357888642 |
| 10 | 25937324601 |
| 11 | 285311509560 |
| 12 | 3138428127889 |
| 13 | 34522711772638 |
| 14 | 379749833045417 |
| 15 | 4177248168656276 |
| 16 | 45949729862523585 |
| 17 | 505447028497873914 |